環境風洞におけるビデオ画像計測手法の開発研究 : その2 濃度変動量の測定方法について

• 大場 正昭

  東京工芸大学

書誌事項

タイトル別名

• STUDIES ON INSTRUMENTATION TECHNOLOGY OF VIDEO IMAGE IN WIND TUNNEL EXPERIMENTS FOR ATMOSPHERIC ENVIRONMENTAL PREDICTION : Part 2. Study on measurement techniques of concentration fluctuations using video images
• カンキョウ フウドウ ニ オケル ビデオ ガゾウ ケイソク シュホウ ノ カイ

抄録

Video imaging techniques were used to measure concentration fluctuations in the wake of a stack using a highspeed video camera. From the experiments, the following results were obtained. The image signals had linear relationships with gas concentrations for mean values in the gray range > 1.5. The turbulence intensity of image signals also had good relationships with that of gas concentrations in the range of I^^- > 0.04. The video image spectra were found to coincide well with those measured by a high-response hydrocarbon analyzer if the noise of the image signals were removed from the images using the numerical lowpass filter. Under this camera condition, the zone capable to take video images was limited in the region of I^^- > 0.04.

収録刊行物

• 日本建築学会計画系論文集

  日本建築学会計画系論文集 61 (481), 61-66, 1996

  日本建築学会

キーワード

• ビデオ画像
• 可視化
• 濃度変動量
• スペクトル
• 風洞

詳細情報

• CRID: 1390001204781948032
• NII論文ID: 110004654257
• NII書誌ID: AN10438548
• DOI: 10.3130/aija.61.61_2
• ISSN: 18818161
• ISSN: 13404210
• NDL書誌ID: 3935165
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3935165
• Web Site: https://www.jstage.jst.go.jp/article/aija/61/481/61_KJ00004221512/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
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  • CiNii Articles
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